Please ensure you are using JDK 1.4 or above and not a JRE

lease ensure you are using JDK 1.4 or above and not a JRE",它需要的是JDK而不是JRE。我给的项目中使用的是公共JRE:



解决
修改Eclipse的配置,使用JDK:Eclipse->Window->Preferences->Java->Installed JREs

Finish后,项目如:


ok

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转载自jynine.iteye.com/blog/2217264